文献类型：期刊文献

英文题名：Efficient degradation of antibiotics in different water matrices through the photocatalysis of inverse opal K-g-C3N4: Insights into mechanism and assessment of antibacterial activity

作者：Lei, Juying[1,2];Chen, Bin[1];Zhou, Liang[1];Ding, Ningkai[1];Cai, Zhengqing[1,2];Wang, Lingzhi[1];In, Su-Il[4];Cui, Changzheng[1,2];Zhou, Yanbo[1,2];Liu, Yongdi[1,2];Zhang, Jinlong[3]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat & Joint Int Res Lab Precis Chem &, Feringa Nobel Prize Scientist Joint Res Ctr, 130 Meilong Rd, Shanghai 200237, Peoples R China;[4]DGIST, Dept Energy Sci & Engn, 333 Techno Jungang Daero, Daegu 42988, South Korea

年份：2020

卷号：400

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20202608880434);WOS:【SCI-EXPANDED(收录号:WOS:000569319600001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (21777044, 5171101651, 21677048 and 21811540394), the National Key Research and Development Program (2016YFA0204200), the National Water Pollution Control and Treatment Science and Technology Major Project (2017ZX07207002), the Science and Technology Commission of Shanghai Municipality (17520711500, 19ZR1472400, 19230711300), and the Fundamental Research Funds for the Central Universities (222201714061, 222201915012 and 222201818014).

语种：英文

外文关键词：Graphitic carbon nitride; Inverse opal; Doping; Antibiotic degradation; Antimicrobial activity

摘要：The efficient degradation of fluoroquinolone antibiotics and the reduction of their antimicrobial activity were achieved in different water matrices through the photocatalysis of inverse opal potassium-doped carbon nitride (IO K-CN). The IO K-CN photocatalyst with optimum doping ratio of potassium performed much better than bulk carbon nitride and pure inverse opal carbon nitride for removing fluoroquinolone antibiotics, such as levo-floxacin (LVX) and norfloxacin (NOR). The remarkably narrowed band gap resulting from potassium doping and the unique properties of the inverse opal construction jointly contributed to enhancing the activity of the photocatalyst. A possible mechanism and degradation pathway for LVX was proposed on the basis of a series of characterizations including electron spin resonance (ESR) experiments, and liquid chromatography-mass spectrometry (LC-MS) analysis. Meanwhile, the byproducts during the LVX photocatalytic degradation were shown to have much lower sterilization effect, implying that the toxicity and the potential risk of LVX were excellently reduced. The potential application for the treatment of antibiotic-containing wastewater was indicated by the excellent treatment efficiency and favorable durability of this photocatalyst.